2,245 research outputs found
Identifying Health Centers in Honduras Infested with Rhodnius Prolixus Using the Seroprevalence of Chagas Disease in Children Younger than 13 Years.
The objective of this study is to determine if a Chagas disease protocol starting with a serological survey is as reliable at identifying insect-infested areas as one using the gold standard entomological survey. The study found that health center areas infested with Rhodnius prolixus were identified using a threshold seroprevalence of 0.1%. The serological survey took half the time and was 30% less expensive than the entomological survey. Developing countries with limited resources may find this strategy useful in combating Chagas disease. This strategy also identifies seropositive children, which facilitates their treatment
Heating and cooling a tri-level house with a hydronic baseboard-valance system
Cover title.Prepared as part of an investigation conducted by the Engineering Experiment Station, University of Illinois at Urbana-Champaign
Differential experiences of time in academic work:how qualities of time are made in practice
Increasing time pressures, an accelerating pace of work and the need to juggle an increasing number of competing demands are common experiences of academics working in contemporary universities. At the same time, notions of ‘time famine’ and ‘time squeeze’ have formed relatively long-standing topics of social science research and popular debate. This article draws together interviews with 15 academics based in sociology departments at four UK universities, with existing research on time, work and leisure to explore the social dynamics that underpinned these academics’ experiences. The paper argues that it is not only quantities of overall work, but the qualities of time made through everyday work, which are important for academics’ experiences of time. In particular, the paper identifies three key mechanisms that pull towards the fragmentation of daily and weekly schedules: work–leisure boundary making, organisational structuring of time and the intrinsic rhythms of practices. These mechanisms combined in different configurations depending on institution type and career stage, advantaging some and disadvantaging others. The paper provides an alternative to existing accounts about the effects of new managerialism and audit culture on academic practice, which focus on how increasing amounts of work ‘squeeze time’, and suggests that we should equally be concerned with how qualities of time are made in practice, and the effects of contemporary contexts on these processes
Grow your own:space, planning, practice and everyday futures of domestic food production
The essay explores the relationship between space, planning and everyday practices, focussing on futures of domestic food growing spaces and practices in Italy and the UK. The first case looks at the recent inclusion of the ‘community garden’ in the eco urban housing model in L’Aquila, Italy, and traces the relationships between planning, space and practices as this model is imported into a rural community. The second case explores a longer national trajectory of allotments (plots of land rented for growing vegetables) in the UK. Over time, the allotment becomes endowed with different social and cultural meanings, as its position within policy, systems of provision, urban infrastructure and everyday practices changes. Through considering these examples from past and present, we reflect on anticipated food growing futures in different times and places, and ask how these various ‘experiments’ of policy, planning and practice, are best conceptualised
Ozone measurement systems improvements studies
Results are summarized of an initial study of techniques for measuring atmospheric ozone, carried out as the first phase of a program to improve ozone measurement techniques. The study concentrated on two measurement systems, the electro chemical cell (ECC) ozonesonde and the Dobson ozone spectrophotometer, and consisted of two tasks. The first task consisted of error modeling and system error analysis of the two measurement systems. Under the second task a Monte-Carlo model of the Dobson ozone measurement technique was developed and programmed for computer operation
Delayed antibiotic prescriptions for respiratory infections
Background: Concerns exist regarding antibiotic prescribing for respiratory tract infections (RTIs) owing to adverse reactions, cost, and antibacterial resistance. One proposed strategy to reduce antibiotic prescribing is to provide prescriptions, but to advise delay in antibiotic use with the expectation that symptoms will resolve first. This is an update of a Cochrane Review originally published in 2007, and updated in 2010 and 2013. Objectives: To evaluate the effects on clinical outcomes, antibiotic use, antibiotic resistance, and patient satisfaction of advising a delayed prescription of antibiotics in respiratory tract infections. Search methods: For this 2017 update we searched the Cochrane Central Register of Controlled Trials (CENTRAL) (the Cochrane Library, Issue 4, 2017), which includes the Cochrane Acute Respiratory Infection Group's Specialised Register; Ovid MEDLINE (2013 to 25 May 2017); Ovid Embase (2013 to 2017 Week 21); EBSCO CINAHL Plus (1984 to 25 May 2017); Web of Science (2013 to 25 May 2017); WHO International Clinical Trials Registry Platform (1 September 2017); and ClinicalTrials.gov (1 September 2017). Selection criteria: Randomised controlled trials involving participants of all ages defined as having an RTI, where delayed antibiotics were compared to immediate antibiotics or no antibiotics. We defined a delayed antibiotic as advice to delay the filling of an antibiotic prescription by at least 48 hours. We considered all RTIs regardless of whether antibiotics were recommended or not. Data collection and analysis: We used standard Cochrane methodological procedures. Three review authors independently extracted and collated data. We assessed the risk of bias of all included trials. We contacted trial authors to obtain missing information. Main results: For this 2017 update we added one new trial involving 405 participants with uncomplicated acute respiratory infection. Overall, this review included 11 studies with a total of 3555 participants. These 11 studies involved acute respiratory infections including acute otitis media (three studies), streptococcal pharyngitis (three studies), cough (two studies), sore throat (one study), common cold (one study), and a variety of RTIs (one study). Five studies involved only children, two only adults, and four included both adults and children. Six studies were conducted in a primary care setting, three in paediatric clinics, and two in emergency departments. Studies were well reported, and appeared to be of moderate quality. Randomisation was not adequately described in two trials. Four trials blinded the outcomes assessor, and three included blinding of participants and doctors. We conducted meta-analysis for antibiotic use and patient satisfaction. We found no differences among delayed, immediate, and no prescribed antibiotics for clinical outcomes in the three studies that recruited participants with cough. For the outcome of fever with sore throat, three of the five studies favoured immediate antibiotics, and two found no difference. For the outcome of pain related to sore throat, two studies favoured immediate antibiotics, and three found no difference. One study compared delayed antibiotics with no antibiotic for sore throat, and found no difference in clinical outcomes. Three studies included participants with acute otitis media. Of the two studies with an immediate antibiotic arm, one study found no difference for fever, and the other study favoured immediate antibiotics for pain and malaise severity on Day 3. One study including participants with acute otitis media compared delayed antibiotics with no antibiotics and found no difference for pain and fever on Day 3. Two studies recruited participants with common cold. Neither study found differences for clinical outcomes between delayed and immediate antibiotic groups. One study favoured delayed antibiotics over no antibiotics for pain, fever, and cough duration (moderate quality evidence for all clinical outcomes - GRADE assessment). There were either no differences for adverse effects or results favoured delayed antibiotics over immediate antibiotics (low quality evidence - to GRADE assessment) with no significant differences in complication rates. Delayed antibiotics resulted in a significant reduction in antibiotic use compared to immediate antibiotics prescription (odds ratio (OR) 0.04, 95% confidence interval (CI) 0.03 to 0.05). However, a delayed antibiotic was more likely to result in reported antibiotic use than no antibiotics (OR 2.55, 95% CI 1.59 to 4.08) (moderate quality evidence - GRADE assessment). Patient satisfaction favoured delayed over no antibiotics (OR 1.49, 95% CI 1.08 to 2.06). There was no significant difference in patient satisfaction between delayed antibiotics and immediate antibiotics (OR 0.65, 95% CI 0.39 to 1.10) (moderate quality evidence - GRADE assessment). None of the included studies evaluated antibiotic resistance. Authors' conclusions: For many clinical outcomes, there were no differences between prescribing strategies. Symptoms for acute otitis media and sore throat were modestly improved by immediate antibiotics compared with delayed antibiotics. There were no differences in complication rates. Delaying prescribing did not result in significantly different levels of patient satisfaction compared with immediate provision of antibiotics (86% versus 91%) (moderate quality evidence). However, delay was favoured over no antibiotics (87% versus 82%). Delayed antibiotics achieved lower rates of antibiotic use compared to immediate antibiotics (31% versus 93%) (moderate quality evidence). The strategy of no antibiotics further reduced antibiotic use compared to delaying prescription for antibiotics (14% versus 28%). Delayed antibiotics for people with acute respiratory infection reduced antibiotic use compared to immediate antibiotics, but was not shown to be different to no antibiotics in terms of symptom control and disease complications. Where clinicians feel it is safe not to prescribe antibiotics immediately for people with respiratory infections, no antibiotics with advice to return if symptoms do not resolve is likely to result in the least antibiotic use while maintaining similar patient satisfaction and clinical outcomes to delaying prescription of antibiotics. Where clinicians are not confident in using a no antibiotic strategy, a delayed antibiotics strategy may be an acceptable compromise in place of immediate prescribing to significantly reduce unnecessary antibiotic use for RTIs, and thereby reduce antibiotic resistance, while maintaining patient safety and satisfaction levels. Editorial note: As a living systematic review, this review is continually updated, incorporating relevant new evidence as it becomes available. Please refer to the Cochrane Database of Systematic Reviews for the current status of this review
Gießen, historisches Porträt einer hessischen Stadt
Sefton Hamann was born in Christchurch, New Zealand, on 8 January 1921 and died in Melbourne on 12 January 2009. He had a distinguished career in Australia's CSIRO as a scientist, as Chief of the Divisions of Physical Chemistry (1960-1966) and Applied Chemistry (1966-1974) and as Chairman of the Applied Chemistry Laboratories Committee (1974-1978). He was internationally recognized for his lifelong contributions to the physico-chemical effects of pressure. He made a major contribution to the nation through his work on the polymer banknote
Saline nasal irrigation for acute upper respiratory tract infections (Review)
BACKGROUND: Acute upper respiratory tract infections (URTIs), including the common cold and rhinosinusitis, are common afflictions that cause discomfort and debilitation and contribute significantly to workplace absenteeism. Treatment is generally by antipyretic and decongestant drugs and sometimes antibiotics, even though most infections are viral. Nasal irrigation with saline is often employed as an adjunct treatment for URTI symptoms despite a relative lack of evidence for benefit in this clinical setting. This review is an update of the Cochrane review by Kassel et al, which found that saline was probably effective in reducing the severity of some symptoms associated with acute URTIs
Interventions in practice:reframing policy approaches to consumer behaviour
This report introduces a novel approach to sustainability policy— a practice perspective. We argue that social practices are a better target of intervention for sustainability policy than ‘behaviour’, ‘choice’ or technical innovation alone. Understanding the dynamics of practices offers us a window into transitions towards sustainability. We consume resources as part of the practices that make up everyday life—showering, doing the laundry, cooking or driving—what we might call inconspicuous or ordinary consumption. While we may have degrees of choice in how we perform these practices, access to resources (economic, social, cultural), norms of social interaction, as well as infrastructures and institutional organisation constrain our autonomy. Practices are social phenomena—their performance entails the reproduction of cultural meanings, socially learnt skills and common tools, technologies and products. This shift of perspective places practices, not individuals or infrastructures, at the centre stage of analysis. Taking practices as the unit of analysis moves policy beyond false alternatives—beyond individual or social, behaviour or infrastructure. A practice perspective re-frames the question from “How do we change individuals’ behaviours to be more sustainable?” to “How do we shift everyday practices to be more sustainable?” After all, ‘behaviours’ are largely individuals’ performances of social practices
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